/Engine/Plugins/Runtime/MassEntity/Source/MassEntity/Public/MassEntityQuery.h
Sets a chunk filter condition that will applied to each chunk of all valid archetypes. Note that this condition won't be applied when a specific entity colleciton is used (viaFMassArchetypeEntityCollection) The value returned by InFunction controls whether to allow execution (true) or block it (false).
void SetChunkFilter ( const [FMassChunkConditionFunction](API\Plugins\MassEntity\FMassChunkConditionFunction) & InFunction )